• DocumentCode
    2351572
  • Title

    5J-2 A Method to Control the Electrical Impedance of Phased Array Elements

  • Author

    Hynynen, Kullervo

  • Author_Institution
    Dept. of Med. Biophys., Toronto Univ., Ont.
  • fYear
    2006
  • fDate
    2-6 Oct. 2006
  • Firstpage
    1052
  • Lastpage
    1055
  • Abstract
    A method that uses lateral coupling to generate the ultrasound waves was tested for reducing the electrical impedance of small phased array elements. Cylindrical, radially polled transducer elements were driven in their length mode. The electrical impedance could be controlled by the cylinder wall thickness while the operation frequency was determined by the length of the cylinder. Acoustic intensity (averaged over the cylinder diameter) over 10 W/cm2 was measured from these elements
  • Keywords
    acoustic intensity; electric impedance; electric variables control; ultrasonic transducer arrays; ultrasonic waves; acoustic intensity; electrical impedance control; phased array transducer elements; ultrasound waves; Acoustic measurements; Acoustic testing; Acoustic transducers; Frequency; Impedance; Phased arrays; Thickness control; Ultrasonic imaging; Ultrasonic transducer arrays; Ultrasonic transducers;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Ultrasonics Symposium, 2006. IEEE
  • Conference_Location
    Vancouver, BC
  • ISSN
    1051-0117
  • Print_ISBN
    1-4244-0201-8
  • Electronic_ISBN
    1051-0117
  • Type

    conf

  • DOI
    10.1109/ULTSYM.2006.252
  • Filename
    4152108
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2351572